Bing showed no search results for “tank man” on the 23rd anniversary of the Tiananmen Square Massacre, but this was just due to “accidental human error.” The Epoch Times reported:
Microsoft on Friday said that its search engine Bing yielded no results when users entered the query “tank man” in the United States and elsewhere for part of Friday because of “accidental human error.”
The “error” was resolved a few hours later.